Ostensibly about time travel, this novel's real focus is the effects of generational trauma and parental neglect. Ursa makes a new life for herself in California, her ability to travel into her own past a gift that draws followers to her remote home. Her son Ray escapes, yet when his daughter Opal displays the same talent, it threatens to destroy their family. Ursa is truly awful, and her form of time travel seems more like a trap than a gift.